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Hi Brian, Thank you very much for reaching out with your question. The "LOC" is a safety feature for locking of the controls to avoid accidental changing of temperature or turning off during use, given the proximity of the buttons to your finger positions while brushing. Pushing the power button 3 times will turn the unit to the "OFF" position. In addition, after 30 minutes the unit turns off both the heating and ionic features, though we always recommend unplugging for additional safety. Additionally, if you press the power button twice and then on the third time hold it down, it unlocks and the unit will turn off. We hope you find this helpful and if there is anything else we can do for you, please don't hesitate to let us know. Sincerely, Wild Willies
Sorry, there was a problem. Please try again later.You have to kinda toggle it. Its designed that was so your hand doesn't get in the way while using. just continue to press it until it doesn't display the "loc" and then you have the option to change the temp or turn it off. To turn it off, just hold the power button once the "loc" display goes away from you tapping it.
Sorry, there was a problem. Please try again later.If it says lock, just wait and hold it down again to turn off. I set the temp after I cut it on, it normally does a count up to the desired temp.
Sorry, there was a problem. Please try again later.Just push the plus button until you set the temp u want and then it will go up to that temp as u watch it climb to reach the temp u put in
Sorry, there was a problem. Please try again later.